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A 55 kg swimmer is standing on a stationary 180 kg floating raft. The swimmer then runs offthe raft horizontally with a velocity of +4.0 m/s relative tothe shore. Find the recoil velocity that the raft would have ifthere were no friction and resistance due to the water.
Find the focal length of a glass lens that has an index of refraction equal to 1.66, a concave surface that has a radius of curvature of magnitude 108 cm
How many protons hit the target. How much energy is delivered to the target each second if the protons each have a kinetic energy of 30 MeV and lose all of their energy in the target.
A person pulls a sled for a distance of 37.0m along the snow with a rope directed at 20 degrees above the snow. how much work is done on the sled by the tension force
The drawing shows a block at rest on an incline. What is the static frictional force that acts on the block
You have a circular swimming pool with a diameter of 3.60 m. If you pump water into the pool at a rate of 1.87 x 104 cm3/s, how fast is the level of the water rising
The weight of the car is 14 kN. You know three points on the plane, What is the force of friction (Ff=?).
a skier of mass 100 kg, starts from rest as the top of a frictionless incline of height 20 m, how far does she travel on the horizontal surface before coming to rest
A particle state is represented by the following wave function
A hockey player uses her hockey stick to exert a force of 1.78 N on a stationary hockey puck. What is the acceleration of the hockey puck
I am confused as to whether or not this is a trick question Two metal strips are brought together until their edges are separated by a small distance, What changes would you expect to observe
When its coil rotates at a frequency of 258 Hz, a certain generator has a peak emf of 72 V. What is the peak emf of the generator
A piano string with mass density 7700 kg/m3 and diameter 0.3 mm is stretched over a pulley such that its vibrating length is 45 cm. A hanging mass of 35 kg is attached to the end of the string that passes over the pulley.
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